Discover and read the best of Twitter Threads about #CarbonSequestration

Most recents (17)

πŸš¨πŸ“NEW PAPERπŸ“πŸš¨

In a recently published paper, researchers use β€œan LCA approach to calculate the Long-Lasting #CarbonSequestration (LLCS) of #seaweed, which can be understood as the difference between #CarbonFixation & released C throughout the life cycle of seaweed.”

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Using kelp (Laminaria japonica) as an example of seaweed, the present study β€œvalidates the procedure of calculating the LLCS of seaweed throughout its whole life cycle in Ailian Bay from nursery to processing into #biochar (fertilizer) as the final product.”
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The results showed that β€œthe #CarbonSequestration (full life cycle) of kelp in Ailian Bay was 97.73g C /m2/year.”
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Read 9 tweets
πŸ“πŸ’‘ π–πžπžπ€π₯𝐲 𝐇𝐒𝐠𝐑π₯π’π π‘π­π¬πŸ’‘πŸ“
Here's your roundup of top #CarbonDioxideRemoval News Articles / Scientific Papers from the past week:
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1️⃣ 🌱🚜 @undocarbon raises Β£9.6 million ($11.93 million) in funding for its #EnhancedRockWeathering technology led by @lowercarbon.

2οΈβƒ£πŸ’΅ In an effort to neutralize its environmental footprint, JP Morgan has announced it plans to invest more than $200 million to purchase credits from several #CarbonDioxideRemoval companies (β€œone of the biggest bets ever on #CarbonRemoval”).

Read 12 tweets

β€œKeeping tree diversity intact in Canada's many forests over the long term can help increase carbon capture & mitigate climate change,” according to a new University of Alberta study.
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The study, published in @Nature, β€œis the first of its kind to show the sustained benefits of tree diversity on a large spatial scale, in terms of #storing #carbon and nitrogen in the soil. It reinforces the importance of biodiversity conservation in forests.”
The researchers analyzed β€œCanada's National Forest Inventory database & used statistical modeling to provide new evidence of a link between greater tree diversity & higher soil C & N accumulation in natural forest ecosystems over decadal time scales.”
Read 8 tweets

"Utilization of biochar as a cementitious material aids in CO2 sequestration by impeding the release of C in the atm. So, a recent study reviewed the prospect of #biochar as a #cementitious material by evaluating its physical, mechanical & durability properties."🧡 ImageImage
This research suggested that "the physical properties of #biochar promote its use as an environmental control device."
A summary of the preparation and characterization of biochar is presented in a Fig. ⬇️
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According to the study, #pozzolan is a siliceous & aluminous material
that chemically reacts with Ca(OH)2 at room temp to form compounds having #cementitious attributes. So, some of the silica-rich biochars, like the ones derived from #RiceHusk have pozzolanic properties."
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Read 7 tweets
✍️ π–πžπžπ€π₯𝐲 𝐇𝐒𝐠𝐑π₯𝐒𝐠𝐑𝐭𝐬 ✍️

Top #CarbonDioxideRemoval News /Scientific papers from the past week covered in a 🧡below: ⬇️

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1️⃣ 🌊"Dalhousie receives historic $154‑million investment to study the ocean’s pivotal role in climate change. The π₯𝐚𝐫𝐠𝐞𝐬𝐭 𝐫𝐞𝐬𝐞𝐚𝐫𝐜𝐑 𝐠𝐫𝐚𝐧𝐭 in Dalhousie history"!



2️⃣ 🚜🌾"The Carbon Business Council (@CO2Council) released a policy brief on #CarbonRemoval and the #2023FarmBill."


Read 15 tweets

🌲"#Sequestering C in forest ecosystems is important for mitigating #ClimateChange."

✍️"Policy concern: whether forests should be left unharvested to reduce CO2 #emissions & store C, or harvested to take advantage of potential #CarbonStorage & #removal."

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So, new study addressed this issue "by examining C rotation ages that consider commercial timber and C values. A discrete-time optimal rotation age model is developed that uses data on C #fluxes stored in living & dead biomass as opposed to C as a function of timber growth."
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"Carbon is allocated to several ecosystem and post-harvest product pools that decay over time at different rates. In addition, the timing of #CarbonFluxes is taken into account by weighting future carbon fluxes as less important than current ones."
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Read 8 tweets

"#Afforestation & #reforestation are worthwhile solutions for C sequestration, but lack of hierarchical spatial-temporal maps for national scale #CarbonSequestrationRate hinders scientific implementation."

In this regard, a new study is published, details ⬇️
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🌲Researchers assessed "the spatial-temporal #CarbonSequestrationRate (CSR) per area for #Afforestation & #Reforestation at the provincial, prefectural, and county levels in China using a forest carbon sequestration model under three climate scenarios."
🌳🌱Results showed that "the #CSR of vegetation (CSRVeg), soil (CSRSoil), and the ecosystem (CSREco) significantly varied across space and time. In China, the CSRVeg, CSRSoil, and CSREco were primarily regulated by the spatial variations in temperature and precipitation."
Read 8 tweets
πŸš¨πŸ“ππ„π– π’π“π”πƒπ˜πŸ“πŸš¨

"Researchers recently investigate the feasibility of industrial-scale geologicalΒ #CarbonSequestrationΒ as an effectiveΒ #ClimateChange mitigationΒ technology."

πŸ“œDetails are discussed in aπŸ§΅β¬‡οΈ

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"This investigation was done by performing numerical simulations of coupled multiphase flow and geomechanics on a representative field-scale #geological model in the Gulf of Mexico that could become a typical CO2 #storage site."
Authors use "representative model to examine 2 potential hazards associated with large-scale CO2 storage:
πŸ”ΈCO2 might migrate to shallower formations
πŸ”ΈCO2 injection might induce seismicity due to destabilization of pre-existing faults."
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Read 9 tweets
πŸ“πŸ’‘ π–πžπžπ€π₯𝐲 𝐇𝐒𝐠𝐑π₯π’π π‘π­π¬πŸ’‘πŸ“
Here's is your roundup of top #CarbonDioxideRemoval News Articles / Scientific Papers from the past week: 🌱πŸͺ¨πŸŽ›οΈπŸŒŠ

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1️⃣ #CarbonRemoval Policy Tracker launched by @CarbonGap to explore Europe’s #CDR #DAC #BECCS policy landscape & pilots.πŸŒ±πŸŽ›οΈ

2️⃣ ✍️ @fionaharvey's recent blog post explored the contentious issue related to #CarbonDioxideRemoval technologies.πŸ“°

Read 14 tweets
πŸš¨π‘π„π•πˆπ„π– ππ€ππ„π‘πŸš¨

"The recent review article discusses the basic operation of the marine #CarbonCycle & 2 #mCDR methods that are "thought to offer the greatest potential in terms of #CDR mass:

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Various conclusions were drawn in the review which are enlisted below:

1️⃣ "The alkalinity of the ocean creates a massive increase in the ocean’s capacity to #store #carbon, relative to a scenario without #OceanAlkalinity."
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2️⃣ "Ocean warming causes decreases in both #CO2 #solubility and the Revelle factor (B), which make the ocean less efficient at #absorbing CO2."
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Read 14 tweets
πŸš¨πŸ§Ύππ„π– π‘π„ππŽπ‘π“πŸ§ΎπŸš¨
The Climate Change Authority of #Australia has issued a report that pinpoints #CarbonSequestration as critical to reduce emissions.

"Storing C away from the atm is integral, both to avert #GHGs from entering the atm & to #remove them from it."
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The report notes that "while conventional #CarbonAccounting is simple and economically flexible, it does not consider crucial differences between different sources and sinks of #GHG #emissions." As a result, 𝐈𝐭 𝐩𝐫𝐨𝐩𝐨𝐬𝐞𝐬 𝐭𝐑𝐞 𝐟𝐨π₯π₯𝐨𝐰𝐒𝐧𝐠 𝐚𝐜𝐭𝐒𝐨𝐧𝐬: ⬇️
1️⃣ "The Government should prioritise the development of long-lived geological and mineral #storage technologies.

2️⃣ Measures to restore CO2 released from #CarbonSinks should be reviewed and enhanced as appropriate."
Read 11 tweets

"In order to assess carbon-biodiversity trade-off, the new paper examines the spatial relationships between biophysical & social values for #CarbonSequestration potential (measured as CO2 flux) & #biodiversity in Finland, using integrated valuation."

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The approach used by authors "combines methods from #CarbonSequestration modelling, expert scoring approaches to biodiversity assessment and public participation geographic information systems (PPGIS)."
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Results indicate "strong spatial associations between biophysical assessment of #CO2Β #flux and biodiversity priorities, and weaker associations between biophysical and social values."
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Read 6 tweets

A viable & novel formula for a #CarbonNegative, environmentally friendly #concrete that is nearly as strong as regular concrete has been developed recently at Washington State University.


*Summary* in a🧡 below:
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🧫 Researchers exemplify "a synergistic C-capture strategy, i.e., using #concrete washout water & #biochar together to achieve carbon-negative concrete."

"This strategy enabled the biochar to #capture 22.85 wt% air-borne CO2, which precipitated CaCO3 onto the biochar."
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πŸ”¬"This carbon-negative cement paste consisted of 30 wt% CO2-weathered #biochar and 70 wt% portland limestone #cement, which achieved the 7-day and 28-day compressive strengths of 22.1 MPa and 27.6 MPa, respectively," microscopic investigation revealed.
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Read 7 tweets
Recently, I was asked to give a seminar for @mhclg’s planners on the challenges faced by local authority planners delivering against the #climateemergency, because I work with lots of councils & I’m also Cabinet Member for Forward Planning at @CotswoldDC. So I know some stuff.
First up, I did the β€˜we’re all doomed’ bit. You know, the rollercoaster graphs steeply going up and the even steeper graphs of how emissions need to come down.
Then I mentioned about how most plans are running for about another 10-15 years and they need re-writing immediately because most of them pay diddly-squat attention to the β€˜what goes up must come down graphs’ from the β€˜we’re all doomed’ bit.
Read 23 tweets

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